Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph.

Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?

Answer/Solution

10 min

Steps/Work

Due to stoppages, it covers 9 km less.
Time taken to cover 9 km = (9/54 x 60) min = 10 min
Answer : C

Physics Calculator / Auto Solver

Excluding stoppages, the speed of a bus is kmph and including stoppages, it is kmph. For how many minutes does the bus stop per hour?

Calculated Answer

10

Step by Step Solution

In order to solve problem, you must evaluate (n₀ - n₁) / n₀ * 60.

n₀ =	54
n₁ =	45

(n₀ - n₁) / n₀ * 60
Evaluate n₀ - n₁ = 9
9 / n₀ * 60
Evaluate 9 / n₀ = 0.16666666666667
0.16666666666667 * 60
Evaluate 0.16666666666667 * 60 = 10
10
The answer to the problem and the result of (n₀ - n₁) / n₀ * 60 is 10